Content
50%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
The content is a well-organized catalog of London School TDD patterns with genuinely executable Jest examples, but it mixes in non-existent swarm APIs as pseudocode, repeats mock setups, and never sequences the red-green-refactor cycle with explicit validation checkpoints. As a single 248-line monolith it also lacks progressive disclosure.
Suggestions
Replace or clearly label the fabricated swarm APIs (swarmCoordinator, createSwarmMock, SwarmContractMonitor, jest.getAllMockCalls) with real, executable equivalents or mark them as illustrative pseudocode.
Add an explicit red-green-refactor workflow with validation checkpoints (write failing test -> run to confirm failure -> implement -> run to confirm pass -> refactor) under the methodology section.
Trim repeated mock-setup blocks and the closing conceptual restatement to tighten token efficiency, or move extended pattern catalogs into a reference file referenced from SKILL.md.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is mostly compact code examples that earn their place, but it repeats similar mock-setup patterns across sections and includes conceptual restatement Claude already knows (e.g. 'The London School emphasizes how objects collaborate rather than what they contain'), placing it at the 'mostly efficient but could be tightened' level 2 rather than the lean level 3. | 2 / 3 |
Actionability | The Jest examples use real, executable APIs (jest.fn(), toHaveBeenCalledWith), but the swarm-coordination examples rely on non-existent APIs (swarmCoordinator.notifyTestStart, createSwarmMock, extendSwarmMock, SwarmContractMonitor, jest.getAllMockCalls) that are effectively pseudocode, matching the 'some concrete guidance but incomplete / pseudocode' level 2 rather than fully executable level 3. | 2 / 3 |
Workflow Clarity | Sections are organized and the outside-in flow is gestured at, but the core TDD cycle (red-green-refactor) is never laid out as an explicit sequence with validation checkpoints such as 'run the test, confirm it fails, implement, re-run', so it sits at the 'sequence present but checkpoints missing' level 2 rather than the explicit-validation level 3. | 2 / 3 |
Progressive Disclosure | No bundle files exist and the entire ~248-line guide is inline with no overview-then-detail split or external references; the under-50-line simple-skill exception does not apply, so it lands at the 'content that should be separate is inline' level 2 rather than the well-signaled reference structure of level 3. | 2 / 3 |
Total | 8 / 12 Passed |